Full list of all 75 The Elder Scrolls V: Skyrim achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 3 DLC packs containing 25 achievements.
Collect 15 Daedric Artifacts
Returned the Thieves Guild to its former glory
Pick 50 locks and 50 pockets
Complete "The Eye of Magnus"
Reach Level 50
Learn 20 shouts
Have 100,000 gold
Chop wood, mine ore, and cook food
Complete "Glory of the Dead"
Read 50 Skill Books
Absorb 20 dragon souls
Complete "Revealing the Unseen"
Get married
Make a smithed item, an enchanted item, and a potion
Complete "Dragonslayer"
Complete "The Fallen"
Complete "Elder Knowledge"
Complete "Alduin's Wall"
Clear 50 dungeons
Successfully persuade, bribe, and intimidate
Complete "Diplomatic Immunity"
Complete "Darkness Returns"
Join the College of Winterhold
Get a skill to 100
Capture Solitude or Windhelm
Complete 10 side quests
Complete "Hail Sithis!"
Complete "Bound Until Death"
Capture Fort Sungard or Fort Greenwall
Join the Dark Brotherhood
Escape from jail
Learn all three words of a shout
Complete "The Way of the Voice"
Find 13 Standing Stones
Reach Level 25
Acquire a Daedric Artifact
Become a member of the Circle
Absorb a dragon soul
Join the Companions
Complete 50 Misc Objectives
Join the Thieves Guild
Discover 100 Locations
Join the Stormcloaks or the Imperial Army
Reach Level 10
Buy a house
Complete "Bleak Falls Barrow"
Reach Level 5
Select a Standing Stone blessing
Complete "Unbound"
Bounty of 1000 gold in all nine holds
Learn all 3 words of Dragon Aspect
Tame and ride 5 dragons
Craft an item out of Stalhrim
Learn the secrets of 5 Black Books
Complete "At the Summit of Apocrypha"
Complete "The Path of Knowledge"
Complete "The Temple of Miraak"
Own a house in Raven Rock
Discover 30 locations on the island of Solstheim
Arrive on Solstheim
Change your face
Use the special power of Auriel's Bow
Complete "Kindred Judgment"
Complete "Beyond Death"
Complete "Awakening"
Complete "Lost to the Ages"
Learn all three words of Soul Tear
Acquire 11 werewolf perks
Acquire 11 vampire perks
Defeat a Legendary Dragon
Build three houses
Buy three plots of land
Adopt a child
Build three wings on a house
Buy a plot of land